Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

Ruby Ruby Blocks Working With Blocks Implementing Block Methods

Posted by Barb Hawes
Barb Hawes
7,253 Points

Why is 'array' needed on line 17?

Perhaps I overlooked the explanation in the lecture. Is it related to the scope of the 'array' variable?

my_array.rb 
class MyArray
  attr_reader :array
  def initialize
    @array = []
  end

  def push(item)
    array.push(item)
  end

  def each(&block)
    i = 0
    while i < array.length
      block.call(array[i])
      i += 1
    end
    array
  end
end

1 Answer

bashburn
bashburn
7,611 Points

Hi Barb, the standard each method returns the original array so to replicate that functionality, the word array is added on line 17 as an implicit return of the original array.